gluon-mesh-batman-adv: Do not ACCEPT incoming packets.

For security reasons we should not accept incoming packets per default
and instead allow specific services on specific interfaces.
Add gluon-firewall package to mitigate open resolver issue

Original patch by Daniel Ehlers <danielehlers@mindeye.net>
Allow sysconfig variable to be used on reboot page
Merge pull request #29 from ohrensessel/add-sysconfig

Allow sysconfig variable to be used on reboot page
gluon-core: add gluon.model lua module
gluon-alfred: split announce.lua into several files and move parts into the appropriate packages

This also fixes the type of a few fields which were strings instead of numbers.
gluon-mesh-batman-adv: add batman-adv version information to alfred
gluon-alfred: add fields idletime, memory and processes to statistics
gluon-alfred: reduce usage of util.exec, improve table formatting
gluon-alfred: use gzip
batman-adv-legacy: update package

This should fix the obnoxious net_ratelimit kernel messages.
gluon-firewall: enable conntrack on WAN

Otherwise, the state match doesn't work, not allowing replies to outgoing
packets to get in.
gluon-status-page: fix neighbor view with current iw/mac80211

The whole status page should be rewritten ASAP, but this fix will at least
make it work again for now...
Merge pull request #3 from freifunk-gluon/master

Merge upstream package changes